TY -的A2 Torri西尔瓦娜。非盟-西风,David b . AU - Sosebee,罗纳德·e . AU - Zartman理查德e . AU -鱼,欧内斯特·b·维拉波斯AU - j·卡洛斯盟——Mata-Gonzalez里卡多AU - Jurado,佩德罗盟——Moffet科里A . PY - 2011 DA - 2011/06/04 TI -有机固体残效果在奇瓦瓦沙漠牧场:十年研究SP - 717863六世- 2011 AB -干旱和半干旱牧场适合有机固体应用程序负责。局部应用是至关重要的,以避免土壤和植被扰动。在这些生态系统表施有机固体残有着持久的影响。我们进行了10年研究项目调查的影响有机固体应用于利率从0到90毫克干哈⁻¹对土壤水渗透;径流和渗滤液水质;土壤侵蚀;饲料生产和质量;幼苗建立;植物的生理反应;氮动力学;有机固体分解;和放牧动物行为和管理。有机固体残馀增加土壤入渗和减少侵蚀。 Effects on soil water quality were observed only at the highest application rates. Biosolids increased soil nitrate-nitrogen. Biosolids increased forage production and improved forage quality. Biosolids increased leaf area of grasses; photosynthetic rates were not necessarily increased by biosolids. Biosolids effects on plant establishment are expected only under moderately favorable conditions. Over an 82-mo exposure period, total organic carbon, nitrogen, and total and available phosphorus decreased and inorganic matter increased. Grazing animals spent more time grazing, ruminating, and resting in biosolids-treated areas; positive effects on average daily gain were observed during periods of higher rainfall. Our results suggest that annual biosolids application rates of up to 18 Mg ha⁻¹适合沙漠牧场。SN - 1687 - 7667 UR - https://doi.org/10.1155/2011/717863 - 10.1155 / 2011/717863摩根富林明应用和环境土壤学PB - Hindawi出版公司KW - ER